Steam-bozler



F. 0. STANLEY.

ST M HOHER.

APPLICATIONFiLED JAN.18.19I9.

F. 0. SCANLEY.

STEAM Boum l APPLICATION FILED I/Il. I8, I9I9. l ggygg amed June 89 319.2%

2 SHEEI'SSHEET 2.

my /4 f4 estA FREELAIN' 0. STANLEY, OF NEWTON, MASSACHUSETTSyASSIG-NOR T0 UNIT RAII.|'W' 'v CAB COMPANY, 0F CAMBRIDGE, CHUSETTS.

Specication of Letters fPaten't.

STEAM-:soenna Patented June 85,1920.

Application led January 18', 1919. Serial No. 271,802.

To all whom it may concern:

Be it known that I, FREELAN O. STALEY,

vide a boiler of increased efficiency and du rability and one which can be constructed and maintained at a minimum expense.

To this end, the boiler is provided with a steam generating section, a steam drying section located above the steam generating section and communicating therewith, and a superheating section located below the steam drying section andabove a portion of the steam generating section to be protected by the latter from the intense heat of the fire while being subjected to sufficient heat to superheat the steam therein.

The steam generating and drying sections may and preferably will be made as the legs of U-tubes, which are arranged in substan# tially vertical rows with-the steam drying legs in each row above the steam generating legs, and with the ends of said U-tubes connected with a vertical header so as to form a detachable unit or section of the boiler. The steam generating legs of the units or sections of the boiler are connected with the vertical header so as to leave a space betweenl predetermined legs for the reception of the superheating section of the boiler, which latn ter section may and preferably'will be made in the form of a coil, whereby a predetermined area or amount of the steam generating section is interposed between the super-v leg or drum located below them, and 'the y boiler may and preferably will be provided with an economizing section which is located above the steam drying sectionsjof .the/units and is connected with the water leg.

These and other features of this invention' in the claims at the end will be pointed out of this specification.

Figure l is a vertical section of onev form of boiler embodying this invention tion being taken on the line 1 1,

' th'eseciFig. 2.

MASSACHUSETTS, A. CORPDRATION 0F MSSA- Fig. 2, a vertical section of the boiler! the economizing coil omitted, and

Fig. 3, a horizontal section on theline `3--3, l* 1g. l, to show the superheater;A

`shown in F ig. l., taken on the line 2 2, with,

The boiler herein shown as embodying the v invention is composed of a plurality, of units or sections, arranged'side by side and eaclrA comprising -a vertically arranged header-a and a plurality of bent tubes Z), which are vertically arranged in rows and are welded or otherwise connected at their opposite ends to the header a.

The tubes are bent substantially into the,

forni of U-tubes, and the lower legs 10 are filled with water and constitute the steam generating section of the boiler, while the` upper legs l2 contain steam and some water and constitute the steamI drying section of the boiler.

In the present instance, each ,verticali I header a has connected with it'two rows of tubes with the tubes in one vertical row .i

staggered with relation to the tubesin thev other vertical row, and with some `of the steam generating legs 10 arranged to form 'Y a .space 13 between corresponding legs of all the sectionsv or units of the boiler, for-the reception of a superhe'ater preferably Ain the versely with relation to the tubes form cof a coil 14, which is arranged trans,-y

ln the present instance, the tubes b have... ,i

the steam generating legs arranged so Ithat the superheater 14 is located above two waiter legs ofgthe 4tubes in one 'vertical row and above one water leg of the tubes in theother i vertical row attached to each header, and as l y a result the super-heater 14 isprotected from the fierce heat of the fire in the firev box 1-5, while leaving the same exposed'to sufficient heat to properly superheat the steam with.l l out danger of burning out the superheaterl y generating section of the boiler so as to'have a greater or less number of the Water legs 10 between it and the lire box, according to the temperature it is desired to carry in the steam. By thus protecting the the latter canhbe positioned in proximityv to the fire in the fire box so as to obtain a super-heater fV maximum etliciency, while providing for long life of the same.

The superheater 14 is supplied with steam from a steam drum 16 by the pipe 17, and .the said drum is located above the headers a into which extend pipes 18 leading from thesteam drum. The pipes. 18 extend to near the bottom iet the headers ot' the end sections and serve toreturn thereto any 'water which may accumulate in the steam drum, vand said pipes are provided with unions or couplings 19by which the'head ers. may be detached from the steam drum.'

The headers agare detachably connected by pipes 20'with awater leg or mud drum 21 located below them, and with which may and preferably will be connected the outlet end of a coil of pipes 22 located above the waterl drying section 12 of the boiler.

The pi es 20' are provided with couplings 23. The' eaders' a between the end headers are detahably connected with the steamL drum 16 by pipes 24 through which the steam passes from the upper'part of the headers into the steam drum. The pipes 24 are also provided with unions or conn plings' 25.

The water fed to the boiler passes through the economizing coil 22 into the water leg 21 and then into the headers a, rising therein to about the line 26 so as to fill the lower Alegs of the tubesb. Thewater in the water legs l() is converted into steam by the lire in the :fire box, and the steam thus generatedpasses through the upper legs 12 of the tubes b into the headers above the level of the water therein, and thence passes through.

the pipes 24 into the steam drum, from which it passes by pipe 17 into and through the superheater 14 to the place where it is to be used. A

Each unit'or section 'of the boiler may be cut out of service in case of accident, with- 'out' interfering with the serviceof the re maining units of the boiler, as itis only necessaryvto uncouple the header from the steam drum and water 'leg ends of the pipe 18 leading from the steam drum' 16 and of the pipe 20 leading from the water leg.

The fire box 15 may be formed by a suitable casing 27 within which the sectional. boiler is located.

l In the present instance l. have rshown one form of boiler embodying the invention, but

it is not desired to limit the invention to the particular embodiment shown.

superheater,

and plug up thevClaims: l. ln a steam generator or boiler, in cornbination, a plurality of sections arrangedy -with the tubes in adjacent rows in staggered relationA and having the lower legs of some of said 1subes spaced apart to form a substantially horizontal space, a steam drum located above said vertical headers and extended transversely with relation to said sections, pipe connections between said headers and the steam drum for the passage of steam from the headers into said steam drum, water outlet pipes detachably connected with said. steam drum and extended into some of said headers to near the lower ends thereof, a superheating coil extended transversely with relation to said sections .in said substantially horizontal space and connected with the steam drum to receive steam therefrom, a water drum located below said headers and extended transversely with relation sections, pipe connections for detachably, connecting said headers with said water drum, and an economiser coil located above the tubes of said sections4 and connected with said water drum to -feed water therete y 2. ln. av steam generator or boiler, in combination, a. plurality of sections arranged side by side and comprising yupright headers and a plurality of bent tubes vertically arranged and having their ends connected with said headers, with the lower legs of some of said tubes spaced apart to form a substantially horizontal space extended transversely withrelation to said sections,` a steam drum located above said vertical headers and extended transversely with relation to said sections, pipe connections between the said headers and the steam drum for the passage oi steam from the headers into said steam drum, a water outlet pipe 'den tachably connected with said steam drum and extended into one of said headers to return water from the steam drinn to said headers, a supcrheater extended transversely with relation to said sections in said substansaid steam drum to receive steam therefrom, a water drum located below said headers and extended transversely with relation to said sections, and pipe connections for detaches vertically arends connected with said headers, with the lower legs of .tially horizontal space and connected with 12o ably connecting said headers with said water side. b v side and comprisixnr weies some of said tubes spaced apart to form a substantially horizontal space extended transversely with relation to said sections, a steam drum located above said vertical headers and extended transversely with relation to said sections, pipe connections between the said headers and the steam drum for the passage of steam from the headers into said steam drum, a water outlet pipe detachably connected with said steam drum and extended into one of said headers to return water from the steam drum to said headers, a superheater extended transversely with relation to said sections in said substantially horizontal space and connected with said steam drum to receive steam therefrom,v

a water drum located below said headers and extended transversely with relation to said sections, pipe connections l'or detachably connecting said headers with said water drum, and an economizer coil located above said bent tubes and connected with said Vater drum to Jfeed vater thereto.

4. ln a steam generator or boiler, in combination. a plurality oi' sections arranged upright h iaders and a plurality of bent tribes vertically arranged and having their ends connected with said headers, with the lower legs ol' some ot' said tubes spaced apart to'iorm a subst-an,- tially horizontal space extended transversely with relation to said sections, a steam drum located above said vertical headers and extended transversely with relation to said sections, pipe connections between the said headers andthe steam drum `forthe passage o' steam from the headers into said steam drum, a water outlet pipe detachably connected with said steam drum and eX- tended into one of saidheaders to return water from the steam drum to said headers, a superheater extended transversely with relation to said sections in said substantially horizontal spa i and connected with said steam drum to receive steam therefrom, and means detachably connected with said headers for supplying water thereto.

5. in a steam generator or boiler, in combination, a plurality ot sections arranged 'side by side and comprising upright headers and a plurality ot' substantially vertical rows oic tubes connected with said headers and comprising upper and lower communicating tubes, a steain drum located above the level of the uppermost of said tubes and extended transversely with relation to said sections, pipe connections between said headers and said steam drum tor the passage of steam` troni the headers into said steam drum, a 

